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Finding the Fourth Proportional to 580,367.92, 870,443.88 and 243,317.20

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Solution

The fourth proportional to 580,367.92, 870,443.88 and 243,317.20 is: 364,930.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,367.92 : 870,443.88 = 243,317.20 : x
  2. Step 2: Convert to fraction form
    580,367.92/870,443.88 = 243,317.20/x
  3. Step 3: Cross multiply
    580,367.92x = 870,443.88 × 243,317.20
  4. Step 4: Simplify right side
    580,367.92x = 211,793,967,638.74
  5. Step 5: Solve for x
    x = 211,793,967,638.74/580,367.92
  6. Step 6: Final answer
    x = 364,930.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.